1. Research Laboratory, Durability of Oleiculture in Semi-Arid and Arid Regions: Amelioration of the Productivity of Olive Tree and Quality of Products, Olive Tree Institute Sousse, Sousse, Tunisia
2. Higher Agronomic Institute of Chott Mariem, IRESA-University of Sousse, Chott Mariem, Sousse, Tunisia
3. Biochemical Laboratory, USCR Mass Spectrometry, LAB-NAFS/LR12ES05 “Nutrition - Functional Foods and Vascular Health”, Faculty of Medicine of Monastir, Monastir, Tunisia
4. Agronomic Research Team, Agronutrition, Carbonne, France
5. Laboratory of soil testing and plant analysis. Instituto Superior de Agronomia, Universidade de Lisboa Tapada da Ajuda, Lisboa, Portugal